摘要
采用原位聚合法以聚氨酯(PU)为外壳包覆聚磷酸铵(APP),制备了PU-APP微胶囊,通过溶剂、用水量、催化剂及原料配比等单因素考察,确定包覆的最佳工艺条件:在常温下,以水作溶剂,自制催化剂大分子树脂X-L-Y的催化作用下,水与APP质量比为3:1,1,2-丙二醇与甲苯-2,4-二异氰酸酯(TDI)物质的量比为1:1,PU与APP质量比为1:6。通过红外光谱(FTIR)、粒径分布和热重(TG)等对PU-APP的性能进行研究,结果表明,PU-APP微胶囊包覆完全,耐水性显著提高,且与APP相比粒径分布更窄、燃烧后残炭量更高,成炭效果更好。
PU -APP microcapsules were prepare by the situ polymerizationuse with ammonium polyphosphate coating bypolyurethane. By the studying of solvent, water consumption, catalyst and raw material ratio, the optimum conditions of coatingwere determined ： ： in the presence of a catalyst called X - L - Y the water and APP weight ratio is 3 ： 1,1,2 - propylene glycoland 2,4 - diisocyanate （TDI） molar ratio is 1 ： 1, PU and APP weight ratio is 1：6. The polyurethane - ammonium polyphosphatemicrocapsules were characterized by infrared spectroscopy, laser particle size instrument and thermogravimetry （TG）. The resultsshow that PU - APP were microencapsulated completely, water resistance significantly improved, and compared with APP, it hasnarrower particle size distribution, higher amounts of residual carbon after combustion.
作者
陈琦
王灏
陈贵军
王瑞菲
岳涛
邢文国
冯维春
Chen Qi Wang Hao Chen Guijun Wang Ruifei Yue Taol, Xing Wenguo Feng Weichun(Shandong Eirst Technology Co. , Ltd. , Zoucheng 237517, China Organic Reaction in Aqueous Engineering Research Center of Shandong Province, Jinan 250014, China)
出处
《山东化工》
CAS
2017年第8期3-7,共5页
Shandong Chemical Industry
基金
泰山学者建设工程基金项目(ts20130918)
山东省自主创新及成果转化专项(2014ZZCX01107)
山东省重点研发计划(2013GGC06002)
山东省西部经济隆起带基层科技人才支持计划项目(XB2014CX009)
关键词
聚磷酸铵
原位聚合法
聚氨酯
微胶囊
ammonium polyphosphate
situ polymerization
polyurethane
microcapsule
